Improvement in stump-pullers



UNITED *STATES P.24.11.urei." OFFICE...

F. M.' MQRGAN, Vor HUNTINGTON," INDIANA.

IMPROVEM ENTl 1N! si'ffurula-A PuLLEas.,

Specification forming partef Letters Patent No. 412,@64, dated May 24, 1864.

4clare that the following is a full, clear, and exact description. of the same, reference being had to the accompanying drawings, making a part of this specification, in which-f Figure l represents a longitudinalvertical section of my invention, showing its operation. Fig. 2 is an end view of the same. y

Similar letters of reference indicate correlsoondin g parts in both figures.

This invention relates to certain improve--i ments in that class of stu mppullers in which the power of the draft-animals is multiplied bymeans of pulley-blocks, drums, and sheaves oi' various diameters.

The nature of this invention and its peculiar advantages will be readily understood` ...fromthefollowinghdescriptien. I...

A represents a flame, made of wood or any other. suitable material, -ot' sufficient strength for the occasion and; supported by two sled-runners, B,`so that the machine can be readily moved from place to place. The uprights C ot this frame form the bearings for the shaft D,which carries the drum E and tle pulleys N O. The drum E.- is made in the form of a double cone, as clearly shown in Fig. 2, its smallest portion, e, being at a short distance from the end b, and its diameter increases rapidly from the -portionfal toward the pulley G. y LEI is a rope, whichis lirxnly secured with one end. to the end b of the drum E, and it-extendsjhro'ugh the snatch-block I and through and around the triple block J and double block K to a ring, c, as clearly shown izi Fig. 1. This ring is irmly secured Ito the `strap d, which passes round the block K,-

an'd said strap is provided at its lower end with a loop to receive a ring, e, which connects -by means of a hook, f, with the root-chain L and by a loop, g, and strap h with the snatchblock I, as clearly shown inthe drawings. The draft rope or chain M is fastened with one end to the circumference of the smnll pulley N, winding several times around the same; thence it ascends over the curved flange@ to the large pulley 0, and after being wound several times round this pulley it extends to the double-tree or other device to which the draft-animals arehitched.

In order to pull a stump, the lnachineis drawn to theA saine and aijjanged overit se that the rootchain, afterwitfha's been firmly secured tothe stump, can.gbe'.convenientlyhooked tothe blocks'I ZK, asisl'own inFig. 1j of the drawings. jThe draft-'animals are; started and at first the rope H unwinds .fromA the end b until vby the/time the rootlchain has been drawn tight, said rope has reached the smallest part a of the drum -E and the power of the machine is at its maximum. Afterthe stump has been started, the rope H ascends the drum E,'and the power gradually decreases with a proportionate increase in speed, until linallythe draft-rope M descends from the large pulley 0 'tov the smallpulley N overA the curved-llange t', andA thereby the speed withwhich the stump is raised from the ground is considerablyincreased.- `By -the combination of' the snatch-block I with the blocks J and K the power exerted on the stump 'is ina lateral direction, and it is applied with-much.bettene`ect.than whenfitacts en- ,draftpnlley and the doublefcone drum E, thev power and speed of the machine are rendered self-adjusting, according to the work to be effected, at any moment. At the beginning ot' the operation until the root-chain is drawn-v tight, the speed of the machinevis increased,

' and in order to start the stump themachine is made to run slow and to exert its greatest power, and finally, .when the stump is to be raised from the ground, the speed of the machine isincrcased while its. power decreases.

It is obvious that the number of sheaves in the several blocks can be changed at pleas. ure, and I do not wish to conlineinyself to the precise number shown in the'drawings.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The blocksv I J K, arranged in combination with the root-chain L, rope H, doublecone drum E, anll pulleys O N, substantially as and for -the purpose herein shown and described.

2. The lcurved 'Bange i, in combination with the pulleys 0 N, draft-rope M, drum E, and blocks I J K, constructed and operating 'in the manner and for thc purpose substantially as herein specified.

F. M. MORGAN.

Witnesses:

J. S. GosHoRN, J AMES M. BRA'rToN. 

